body {
    /* margin-left: 0px;
    margin-top: 0px;
    margin-right: 0px;
    margin-bottom: 0px; */
    margin: 0px;
    overflow: hidden;
}

.heart {
    margin: 0 auto;
}

.nav {
    position: fixed;
    top: 0;
    max-width: 1260px;
    z-index: 1;
}


/* 内容区域开始 */

.content {
    margin-top: 48px;
}

.left-content {
    position: fixed;
    height: 100%;
    width: 20%;
    background-color: rgb(255, 255, 255);
    /* text-align: center; */
    overflow: auto;
}

.myPic {
    position: relative;
    height: 68px;
    border-bottom: 2px solid rgb(221, 221, 221);
    text-align: center;
    line-height: 68px;
}

.myPic #pic {
    display: inline-block;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    line-height: 50px;
    background-color: teal;
}

.myPic #nickname {
    position: absolute;
    top: 0px;
    left: 158px;
    color: rgb(190, 197, 222);
}


/* .left-nav {
    position: absolute;
    left: 10%;
} */

.iconfont {
    color: rgb(22, 20, 20);
}

.left-nav-son {
    line-height: 38px;
}

.left-nav-son:hover {
    background-image: linear-gradient(90deg, rgb(53, 228, 233), rgb(27, 164, 231));
}

.left-nav-a {
    display: inline-block;
    width: 100%;
}

.left-nav-a span:first-child {
    margin: 0 3% 0 33%;
}

.icon-col-left-click {
    /* 对于span元素，要转换成行内块元素C3旋转才生效 */
    display: inline-block;
    transform: rotate(-90deg);
}

.son {
    width: 100%;
    background-image: linear-gradient(90deg, rgb(53, 228, 233), rgb(27, 164, 231));
}

.son li {
    margin-left: 48%;
}

.son a span {
    margin-right: 3%;
    color: rgb(255, 255, 255);
}

.right-content {
    width: 79%;
    /* height: 800px; */
    margin-left: 21%;
    /* background-color: slategray; */
}

#_blank {
    width: 78%;
    margin-left: 21%;
}


/* 内容区域结束 */


/* 底部 */

.foot {
    position: fixed;
    bottom: 0;
    width: 100%;
    max-width: 1260px;
}